It is common in some parts of the United States to refer to this sort of salad by the number of types of beans that it contains; e.g., "Three Bean Salad" or "Four Bean Salad." The generic term, "Bean Salad," can also be used to refer to completely unrelated dishes.
Consuming beans adds significant amounts of fiber and soluble fiber to a diet, with one cup of cooked beans providing between nine and thirteen grams of fiber. Soluble fiber can help lower blood cholesterol. Beans are also high in protein, complex carbohydrates and iron. Adults are recommended to have up to two (female), and three (male) servings. 3/4 cup of cooked beans provide one serving.